Nano banana is the community name for Google's Gemini 2.5 Flash Image. Generate and edit images through reApi's unified endpoint — Nano banana ships to production in minutes, not days.
Free text · required · ≤ 32000 chars
Ten ratios from 1:1 to 21:9
Nano banana renders at 1K only
Up to 14 · public HTTPS URLs only
Try one of these prompts
Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.
One sample at the cheapest tier (1 image).
Gemini 2.5 Flash Image Preview is Google's image generation and editing model, widely known as Nano Banana. On reAPI a single endpoint covers both jobs: a prompt alone for text-to-image, or up to 14 reference images to edit and combine, with 10 aspect ratios, 1K output and one image returned per request. Billing is per image, on either the Standard or the Official channel at that channel's own rate.
Real-world workflows and production use cases you can build and ship with this model.
Edit existing e-commerce shots without a reshoot. Pass the original URL in image_urls, describe the change in plain English, and Nano banana returns an updated render that keeps the product geometry intact while the surrounding scene gets reworked. Run a hundred SKUs through the same prompt template and the catalog stays visually consistent — same lighting language, same background style, every variant on brand.
Edit a photo
Spin four hero variants with four quick requests and pick the winner before stand-up ends. The default Nano banana id is tuned for speed and cheap drafts; switch to `gemini-2.5-flash-image-preview-official` when an investor deck or paid placement needs the higher-fidelity render. Same endpoint, same JSON body — only the model id changes between drafts and finals.
Pass up to 14 reference images and describe how they should combine. Nano banana handles subject + scene + style references in a single call — drop a product photo plus a moodboard frame plus a brand palette swatch and the model fuses them into a new on-brand shot. No mask file, no separate compositing step. Public HTTPS URLs only — upload to your own R2 / S3 / OSS first.
Send model `gemini-2.5-flash-image-preview` for the default Nano banana, or `gemini-2.5-flash-image-preview-official` for Google's official endpoint. Either id hits the same `/api/v1/images/generations` route — switch by changing one string in the request body. No second SDK, no second key, no separate billing surface to wire up. Nano banana behaves like any other reApi model from your code's point of view.
Pricing is in reAPI credits where 1 credit equals $0.001 USD. The estimator on this page costs your exact configuration before submit, so the Nano banana charge in the dashboard matches what the playground showed. No metering surprises, no minimum commitment, no monthly platform fee — only what your app actually generates with Nano banana, billed per image.
Submit a Nano banana task, get a task_id back instantly, poll until the result lands. Serverless functions, queue workers, edge runtimes — wherever you run, the async pattern fits. Failed and moderated requests are not charged, so a flaky prompt never costs you credits. The same lifecycle covers every reApi model — Nano banana plugs into your existing task plumbing.
Sign up at reApi and grab a key from the dashboard. Free signup credits cover the first hundred-plus Nano banana generations, enough to ship the first feature and watch the bill stay at zero while you iterate.
OpenPOST to /api/v1/images/generations with model: gemini-2.5-flash-image-preview and a prompt. Add size or image_urls as you need — the gateway validates every field before charging. Nano banana returns a task_id immediately so the request never blocks your handler.
OpenGET /api/v1/tasks/:id until status is completed. The Nano banana response carries image URLs on our CDN, stable for 24 hours — copy them to your own storage if you need them longer than that.
Opencurl -X POST https://reapi.ai/api/v1/images/generations \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gemini-2.5-flash-image-preview",
"prompt": "moonlight on a bamboo path, ink wash painting",
"size": "16:9"
}'Rejected synchronously with the failing field named. Check enum values, ranges, and URL fields — nothing is charged.
401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.
Reference material and outputs pass automated moderation. Rejected tasks fail with a clear error and a full refund.
A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.
Common questions about this model.
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